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dc.contributor.authorLass, Jordan W.
dc.contributor.authorBennett, Patrick J.
dc.contributor.authorPeterson, Mary A.
dc.contributor.authorSekuler, Allison B.
dc.date.accessioned2017-04-27T23:07:14Z
dc.date.available2017-04-27T23:07:14Z
dc.date.issued2017-02-28
dc.identifier.citationEffects of aging on figure-ground perception: Convexity context effects and competition resolution 2017, 17 (2):15 Journal of Visionen
dc.identifier.issn1534-7362
dc.identifier.pmid28245496
dc.identifier.doi10.1167/17.2.15
dc.identifier.urihttp://hdl.handle.net/10150/623274
dc.description.abstractWe examined age-related differences in figure-ground perception by exploring the effect of age on Convexity Context Effects (CCE; Peterson & Salvagio, 2008). Experiment 1, using Peterson and Salvagio's procedure and black and white stimuli consisting of 2 to 8 alternating concave and convex regions, established that older adults exhibited reduced CCEs compared to younger adults. Experiments 2 and 3 demonstrated that this age difference was found at various stimulus durations and sizes. Experiment 4 compared CCEs obtained with achromatic stimuli, in which the alternating convex and concave regions were each all black or all white, and chromatic stimuli in which the concave regions were homogeneous in color but the convex regions varied in color. We found that the difference between CCEs measured with achromatic and colored stimuli was larger in older than in younger adults. Our results are consistent with the hypothesis that the senescent visual system is less able to resolve the competition among various perceptual interpretations of the figure-ground relations among stimulus regions.
dc.description.sponsorshipCanadian Institute of Health Research; Canada Research Chair Programme; Office of Naval Research; National Science Foundationen
dc.language.isoenen
dc.publisherASSOC RESEARCH VISION OPHTHALMOLOGY INCen
dc.relation.urlhttp://jov.arvojournals.org/article.aspx?doi=10.1167/17.2.15en
dc.rightsCopyright 2017 The Authors. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.en
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectfigure-grounden
dc.subjectagingen
dc.subjectperceptual competitionen
dc.titleEffects of aging on figure-ground perception: Convexity context effects and competition resolutionen
dc.typeArticleen
dc.contributor.departmentUniv Arizonaen
dc.identifier.journalJournal of Visionen
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en
dc.eprint.versionFinal published versionen
dc.contributor.institutionMcMaster University, Hamilton, Ontario, Canadajwlass@gmail.com
dc.contributor.institutionMcMaster University, Hamilton, Ontario, Canadabennett@mcmaster.ca
dc.contributor.institutionUniversity of Arizona, Tucson, AZ, USAmapeters@email.arizona.edu
dc.contributor.institutionMcMaster University, Hamilton, Ontario, Canadasekuler@mcmaster.ca
refterms.dateFOA2018-08-16T07:01:35Z
html.description.abstractWe examined age-related differences in figure-ground perception by exploring the effect of age on Convexity Context Effects (CCE; Peterson & Salvagio, 2008). Experiment 1, using Peterson and Salvagio's procedure and black and white stimuli consisting of 2 to 8 alternating concave and convex regions, established that older adults exhibited reduced CCEs compared to younger adults. Experiments 2 and 3 demonstrated that this age difference was found at various stimulus durations and sizes. Experiment 4 compared CCEs obtained with achromatic stimuli, in which the alternating convex and concave regions were each all black or all white, and chromatic stimuli in which the concave regions were homogeneous in color but the convex regions varied in color. We found that the difference between CCEs measured with achromatic and colored stimuli was larger in older than in younger adults. Our results are consistent with the hypothesis that the senescent visual system is less able to resolve the competition among various perceptual interpretations of the figure-ground relations among stimulus regions.


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Copyright 2017 The Authors. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Except where otherwise noted, this item's license is described as Copyright 2017 The Authors. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.